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Vulnerability record · CVE-2026-35902 · published 27 April 2026

CVE-2026-35902: Mercurycom mipc252w firmware improper restriction of authentication attempts vulnerability

Mercurycom · Mipc252w Firmware

The RTSP service of MERCURY IP camera MIPC252W 1.0.5 Build 230306 has an issue handling failed Digest authentication attempts. By repeatedly sending RTSP requests with invalid authentication parameters, an unauthenticated attacker can cause the RTSP service to enter a persistent authentication failure state, preventing legitimate clients from authenticating and leading to a denial of service.

6.2 CVSS 3.1 Medium EPSS 0.20% · top 91.6% CWE-307 · Improper restriction of authentication attempts
6.2CVSS 3.1 base score
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The RTSP service of MERCURY IP camera MIPC252W 1.0.5 Build 230306 has an issue handling failed Digest authentication attempts. By repeatedly sending RTSP requests with invalid authentication parameters, an unauthenticated attacker can cause the RTSP service to enter a persistent authentication failure state, preventing legitimate clients from authenticating and leading to a denial of service.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/MERCURY_MIPC252W/MERCURY_MIPC252W_3th/README.md ExploitThird Party Advisory
https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/MERCURY_MIPC252W/MERCURY_MIPC252W_3th/README.md ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-35903Mercurycom mipc252w firmware improper authentication vulnerabilityMERCURY MIPC252W IP camera 1.0.5 Build 230306 Rel.79931n contains an improper authentication vulnerability in the RTSP service. After successful Dige…EPSS 0.65%7.5CVE-2026-31256Mercurycom mipc252w firmware null pointer dereference vulnerabilityA null pointer dereference vulnerability exists in the RTSP service of the MERCURY MIPC252W 1.0.5 Build 230306 Rel.79931n. During the processing of a…EPSS 0.49%4.4CVE-2026-35901Mercurycom mipc252w firmware uncontrolled resource consumption vulnerabilityA handling issue in the RTSP service of the Mercury MIPC252W 1.0.5 Build 230306 Rel.79931n allows an authenticated attacker to trigger session termin…EPSS 0.16%

Source: NIST National Vulnerability Database (record CVE-2026-35902), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.